CVE-2024-39475 Information

Description

In the Linux kernel the following vulnerability has been resolved:

fbdev: savage: Handle err return when savagefb_check_var failed

The commit 04e5eac8f3ab(bdev: savage: Error out if pixclock equals zero) checks the value of pixclock to avoid divide-by-zero error. However the function savagefb_probe doesn’t handle the error return of savagefb_check_var. When pixclock is 0 it will cause divide-by-zero error.

Reference

https://git.kernel.org/stable/c/be754cbd77eaf2932408a4e18532e4945274a5c7 https://git.kernel.org/stable/c/86435f39c18967cdd937d7a49ba539cdea7fb547 https://git.kernel.org/stable/c/32f92b0078ebf79dbe4827288e0acb50d89d3d5b https://git.kernel.org/stable/c/4b2c67e30b4e1d2ae19dba8b8e8f3b5fd3cf8089 https://git.kernel.org/stable/c/edaa57480b876e8203b51df7c3d14a51ea6b09e3 https://git.kernel.org/stable/c/b8385ff814ca4cb7e63789841e6ec2a14c73e1e8 https://git.kernel.org/stable/c/5f446859bfa46df0ffb34149499f48a2c2d8cd95 https://git.kernel.org/stable/c/6ad959b6703e2c4c5d7af03b4cfd5ff608036339